Earhook headphones in ear headphones type of fitting in ear transmission mode wired features gold plated jacks function remote control function sound mode stereo button position on cable sensitivity 96 dbmw impedance 50 ohm frequency response 20 20000 hz length of cable 13 m types of cable removable cable double sided symmetrical tangle free jacks 35 mm 4 pole jack plug for apple blackberry jack shape l shaped number of keys 1 earpiece